Patent application number | Description | Published |
20090315544 | Rotation detection device and rotation detector equipped bearing assembly - There is provided a rotation detection device | 12-24-2009 |
20100013463 | Rotation sensor - A rotation detecting sensor (A) is fixed to a sensor fixing member (7), through which it is fitted to a wheel support bearing assembly for detecting the rotation of a rotatable ring of the wheel support bearing assembly. A sensor unit (B) is made up of a sensor element ( | 01-21-2010 |
20100014087 | Lubricant deterioration detector and bearing assembly equipped with such detector - A lubricant deterioration detecting device includes an arcuate optical fiber ( | 01-21-2010 |
20100019761 | Rotation detection device and bearing having rotation detection device - To provide a rotation detecting system of a type having a high detecting resolution, in which the rotational position can be detected accurately, in which a sufficient gap can be secured between the sensor and the rotating body and which is effective to simplify assemblage and processing to thereby reduce the manufacturing cost, the rotation detecting system is provided with a multiplying section | 01-28-2010 |
20110185823 | Sensor-equipped bearing for wheel - A sensor equipped wheel support bearing assembly includes rolling elements ( | 08-04-2011 |
20110193553 | Magnetic array sensor circuit to process an output from a magnetic sensor array - A magnetic array sensor circuit to process an output from a magnetic sensor array including a plurality of magnetic sensor elements arranged in an array. The circuit includes a regulating circuit to reduce an offset variation of the output from the magnetic sensor elements arranged in the array. | 08-11-2011 |
20110209562 | Sensor-equipped bearing for wheel - A wheel support bearing assembly includes rolling elements ( | 09-01-2011 |
20120114277 | SENSOR-EQUIPPED BEARING FOR WHEEL - A sensor equipped wheel support bearing assembly for supporting a vehicle wheel rotatably relative to a vehicle body, including an outer member; an inner member; a plurality of rows of rolling elements interposed between the outer and inner member; a strain sensor unit, made up of a strain generating member and a sensor element fitted to the strain generating member for detecting strains induced in the strain generating member, is fitted to one of the outer and inner members, that serves as a stationary member; and a covering member that covers at least the sensor element sealingly, provided on a mounting surface of the strain generating member of the strain sensor unit, on which the sensor element is mounted, the covering member being made of a resin which is over-molded or an elastomer bonded by vulcanization. | 05-10-2012 |
20120227524 | Electric Actuator - An electric actuator has a housing ( | 09-13-2012 |
20120229004 | WHEEL SUPPORT BEARING ASSEMBLY WITH SENSOR AND IN-WHEEL MOTOR INTEGRATION - Provided is a wheel support bearing assembly with sensor and in-wheel motor integration, that can sense with improved accuracy the forces acting on a contact point between a wheel and a road for precise control of an electric motor unit and/or a vehicle. The bearing assembly includes a bearing unit (A) that rotatably supports a hub of a drive wheel ( | 09-13-2012 |
20120256472 | SENSOR-EQUIPPED BEARING DEVICE FOR WHEEL HAVING INTEGRATED IN-WHEEL MOTOR - To provide a sensor equipped and in-wheel motor incorporated bearing device for a vehicle wheel, which is capable of accurately detecting a rotating condition of a vehicle drive wheel and is effective to accurately control an electric drive motor or an automotive vehicle, the sensor equipped and in-wheel motor incorporated bearing device includes a wheel support bearing assembly for rotatably supporting a hub of the vehicle drive wheel, an electric drive motor providing a rotation device source for the vehicle drive wheel, and a speed reducing mechanism interposed between the electric drive motor and the wheel support bearing assembly. A rotation detecting device is also provided for detecting the rotation of an output shaft of the speed reducing mechanism. | 10-11-2012 |
20120330490 | MOTOR DRIVING SYSTEM FOR ELECTRIC VEHICLE - To provide a motor driving system for an electrically powered automotive vehicle, in which the drive motor is rotationally controlled to increase the reliability, the use is made of an angle sensor for detecting the relative rotational angle between a stator and a rotor of a drive motor for driving the electric vehicle and a controller for controlling the rotation of the drive motor on the basis of the relative rotational angle detected by the angle sensor. The angle sensor is provided in a plural number. The controller includes an angle sensor switching unit operable to select and activate one of the plurality of the angle sensors and then to switch over to an activation of another one of the angle sensors in the event that the one of the angle sensors is determined abnormal. | 12-27-2012 |
20130063138 | MAGNETIC ENCODER - Provided is a magnetic encoder which includes plural rows of magnetic encoder tracks. One magnetic encoder track of the magnetic encoder tracks includes magnetic pattern magnetized thereto to generate signals of equal pitch for detection of rotation. The magnetized magnetic pattern includes N poles and S poles arranged in alternate fashion. The magnetic encoder is configured to be employed spaced through an air gap from sensors that read magnetic signals of the respective magnetic encoder tracks. The magnetic encoder track is configured such that the magnetic pattern thereof acting on position of the corresponding sensor is, under the interference of magnetism of the plural rows of magnetic encoder tracks, detected by the corresponding sensor as an equal pitch magnetic pattern. | 03-14-2013 |
20130066517 | WHEEL BEARING WITH SENSOR - A sensor equipped wheel support bearing assembly having good assemblability with a compact structure and capable of accurately detecting load acting on a bearing of a vehicle wheel is provided. One of an outer member and an inner member that serves as a stationary member has a vehicle body fitting flange to be fitted to a knuckle. One or more load detecting sensor unit is provided on the stationary member and includes a strain generating member having two or more contact fixing segments fixed to the stationary member, and one or more sensors fitted to the strain generating member for detecting a strain occurring in the strain generating member. A circuit fixing stay is provided on a side face of the vehicle body fitting flange and a calculation processing circuit is fitted to this stay for calculating and processing an output signal of the sensor. | 03-14-2013 |
20130177269 | WHEEL BEARING WITH SENSOR - A sensor equipped wheel support bearing assembly, in which a continuous estimated load can be obtained depending on various inputted load conditions is provided. The sensor equipped wheel support bearing assembly includes a sensor unit provided in a stationary member, and a load estimating unit. The load estimating unit includes a load estimation calculating section for calculating the load using an estimation calculating equation, an evaluation value calculation section for calculating an evaluation value, which provides a parameter switching index in the estimation calculating equation, from sensor output signals, and a parameter switching section for switching the parameter based on a comparison result of the evaluation value with a threshold value. The load estimation calculating section includes a calculation correcting block for correcting the calculation result on both sides of the threshold value within a predetermined evaluation value region containing the threshold value. | 07-11-2013 |
20130221952 | ROTATION DETECTOR, WHEEL BEARING EQUIPPED THEREWITH AND PROCESS FOR MANUFACTURING THE SAME - A sensor assembly is sandwiched together with a rubber material mixed with a vulcanizing agent in a mold assembly including an upper mold and a lower mold. The upper and lower molds, while completely sandwiching the sensor assembly, are heated for a predetermined length of time, and a pressure is then applied to the sensor assembly to complete a compressive molding. | 08-29-2013 |
20130223778 | WHEEL BEARING WITH SENSOR - Provided is a sensor-equipped wheel support bearing assembly for rotatably supporting a wheel, including a sensor unit associated with one of outer and inner members that serve as a stationary member. The sensor unit includes a strain generator member that has at least three fixation contact segments fixedly in contact with the stationary member and at least two strain sensors mounted on the strain generator member. A first load estimator is provided to estimate load acting on the bearing assembly, using an average value of output signals of the sensors. A second load estimator is provided to estimate load acting on the bearing assembly, using the average value and an amplitude value of output signals of the sensors. An estimated load provider is provided to sum these outputs from the load estimators in a ratio that depends on wheel rotation speed, for outputting an estimated load. | 08-29-2013 |
20140086517 | SENSOR-EQUIPPED WHEEL BEARING - A wheel support bearing assembly, including rolling elements interposed between raceway surfaces of an outer member and an inner member, one of the members serving as a stationary member, a plurality of sensor units, each including a strain generator member having at least two fixation contact segments and at least two sensors mounted on the strain generator member to sense strain in the strain generator member. The strain generator members are formed of a single band-shaped strain generator body continuously joining the plurality of sensor units. The at least two fixation contact segments are arranged at the same axial positions and spaced from each other along a circumferential direction of an outer diametric surface of the stationary member. Load on the wheel support bearing assembly is estimated by an estimator based on output signals of the at least two sensors. | 03-27-2014 |
20140300175 | IN-WHEEL MOTOR DRIVE ASSEMBLY - An in-wheel motor drive assembly ( | 10-09-2014 |